Hi Grainger,
Here is the setup : genarator direct to eros input . Eros output goes to distortion meter (basicaly voltmeter with Wien bridge filter). Scope is taking signal after the Wien bridge, fundamental is filtered out, highpass filter removes 60hz buzz . Whater leftovers are distortions. Unfortunatly i cant measure Eros's distortion with normal level of signa, my generator itself has about -56dB distortions and, becouse it SS generator with amplifier, harmonic spectrum looks absolutly awful. Re-phrasing John Updike : "solid state, is it a mistake or its done to us in purpose ?"